64 Cambridge Street London SW1V 4QQ

1. 2 Sep 2025

   Received by Westminster

2. 10 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 5 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 91 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided lawful development applications in a median of 106 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 65 Cambridge Street London SW1V 4PS

  26/03949/FULL Submitted 15 Jun 2026 50 yards away

  88% historically approved · decision due ~13 Aug

  Erection of a single storey glazed infill extension at rear lower ground level; installation of air conditioning unit in enclosure within rear yard; replacement of rear ground floor window with doors and Juliet balcony; and removal of window in rear side elevation and making good of brickwork.

  Awaiting decision Full applications Extension Windows or glazing 17 docs
  Small domestic

• 128 Warwick Way London SW1V 4JA

  26/05979/FULL Submitted 2 Sep 2026 50 yards away

  88% historically approved · decision due ~4 Nov

  Replacement of front and rear windows with double glazed timber framed sash and casement windows; replacement of a door with a double glazed timber framed door; and associated works.

  Awaiting decision Full applications Windows or glazing

• 65 Cambridge Street London SW1V 4PS

  26/06871/FULL Submitted 7 Oct 2026 50 yards away

  88% historically approved · decision due ~18 Dec

  Excavation of the front vaults to provide a new bathroom and small utility area and store. Addition of steps within the lobby including other associated works.

  Awaiting decision Full applications

• 50A Cambridge Street London

  22/03923/FULL Submitted 16 Jun 2022 50 yards away

  Variation of condtion 1 of planning permision dated 28 October 2021 (RN: 21/06105/FULL) for the: Use of ground and lower ground floor in connection with residential flat above; construction of a mansard with roof terrace; lower ground rear extension; a front lightwell extension and new railings; replacement of the non-original first floor external balustrade and fenestration alterations. NAMELY, to allow replacement of the existing piers and modern metal railing at first floor level with new traditional black painted metal railing; and raising the cill heights of the approved painted timber sash windows at the lower ground floor street facing facades by 150mm.

  Granted Full applications Extension Loft or dormer +1 12 docs

• 54 Alderney Street London SW1V 4EX

  26/04277/TCA Submitted 29 Jun 2026 50 yards away

  100% historically approved · decision due ~24 Aug

  We planted an olive tree in the bed on the patio behind our house in 2004. It has apparently found a water source and grown much larger than originally expected. We have pruned it regularly, but it has continued to grow and is now disproportionately large for a relatively small patio area. Unfortunately, it has attracted a fungus, which produces substantial amounts of white residue and sticky deposits, which render the use of our outside space effectively impossible. We have taken advice from a tree surgeon, who has told us that without knowing the source of the infection (probably another fruit tree) it will not be feasible to eliminate this. The tree is also now too big to treat. In the light of this, we are seeking permission to cut the tree down.

  Awaiting decision Trees 6 docs

• Basement 41 St George's Drive London SW1V 4DG

  26/01193/FULL Submitted 25 Feb 2026 50 yards away

  88% historically approved · decision due ~22 Apr

  Erection of side infill extension at rear lower-ground level and lowering of the front vaults. (Linked to 26/01194/LBC)

  Awaiting decision Full applications Extension 28 docs

• 26/07339/CLOPUD Awaiting decision

  123 Victoria Street London SW1E 6DE

  Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development
• 26/07345/CLOPUD Awaiting decision

  New Scotland Yard Victoria Embankment London SW1A 2JL

  Installation of Solar Gard Stainless Steel 20 solar control film to the internal face of the existing fifth-floor glazing.

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development
• 26/07293/CLOPUD Awaiting decision

  4 Kildare Gardens London W2 5LU

  Installation of one air source heat pump on the ground in the rear garden, about 447mm from the southern boundary fence and 5612 mm from the rear wall of the building, mounted on anti-vibration feet on stone pavers, with no enclosure or housing. Includes insulated flow and return pipework and a power supply into the lower ground floor plant room. Proposed as permitted development under Schedule 2, Part 14, Class G of the GPDO 2015 (as amended).

  Received 26 Oct, published by the council 29 Oct 2026 Lawful development
• 26/07294/CLOPUD Awaiting decision

  6 - 7 Clifford Street London W1S 2FT

  Installation of a new glazed door and associated glazing infill at fifth-floor terrace level, with glazing to match the existing.

  Received 26 Oct, published by the council 28 Oct 2026 Lawful development
• 26/07290/CLEUD Awaiting decision

  82A Chiltern Street London W1U 5AQ

  Confirmation that digging of trench to contain part of foundations is lawful and that planning permission 23/03464/FULL dated 30 October 2023 commenced before expiry of the three year time period.

  Received 23 Oct, published by the council 29 Oct 2026 Lawful development